Portable desk light



FIG. 1 is a top, front and right side perspective view of a portable desk light showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side view thereof, the opposite side being the same;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a perspective view thereof open for use. 

The ornamental design for portable desk light, as shown and described. 